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author | rogersb11 <brettrogers11@gmail.com> | 2015-11-10 11:19:31 -0600 |
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committer | rogersb11 <brettrogers11@gmail.com> | 2015-11-10 14:01:25 -0500 |
commit | b4d16f70c34ecb908c8a61e58ea51fecdd4a4b10 (patch) | |
tree | 973e9aeb97bb13497d17a43e6f3c070381bc5b87 /include/linux/auto_fs.h | |
parent | d177fbc2f0c263b06c18bda2eb46200a31bcbebd (diff) | |
parent | 5dba9ddd98cbc7ad319d687887981a0ea0062c75 (diff) | |
download | kernel_samsung_smdk4412-b4d16f70c34ecb908c8a61e58ea51fecdd4a4b10.zip kernel_samsung_smdk4412-b4d16f70c34ecb908c8a61e58ea51fecdd4a4b10.tar.gz kernel_samsung_smdk4412-b4d16f70c34ecb908c8a61e58ea51fecdd4a4b10.tar.bz2 |
Merge remote-tracking branch 'korg/linux-3.0.y' into cm-13.0
Conflicts:
crypto/algapi.c
drivers/gpu/drm/i915/i915_debugfs.c
drivers/gpu/drm/i915/intel_display.c
drivers/video/fbmem.c
include/linux/nls.h
kernel/cgroup.c
kernel/signal.c
kernel/timeconst.pl
net/ipv4/ping.c
Change-Id: I1f532925d1743df74d66bcdd6fc92f05c72ee0dd
Diffstat (limited to 'include/linux/auto_fs.h')
-rw-r--r-- | include/linux/auto_fs.h | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/include/linux/auto_fs.h b/include/linux/auto_fs.h index da64e15..6cdabb4 100644 --- a/include/linux/auto_fs.h +++ b/include/linux/auto_fs.h @@ -31,25 +31,16 @@ #define AUTOFS_MIN_PROTO_VERSION AUTOFS_PROTO_VERSION /* - * Architectures where both 32- and 64-bit binaries can be executed - * on 64-bit kernels need this. This keeps the structure format - * uniform, and makes sure the wait_queue_token isn't too big to be - * passed back down to the kernel. - * - * This assumes that on these architectures: - * mode 32 bit 64 bit - * ------------------------- - * int 32 bit 32 bit - * long 32 bit 64 bit - * - * If so, 32-bit user-space code should be backwards compatible. + * The wait_queue_token (autofs_wqt_t) is part of a structure which is passed + * back to the kernel via ioctl from userspace. On architectures where 32- and + * 64-bit userspace binaries can be executed it's important that the size of + * autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we + * do not break the binary ABI interface by changing the structure size. */ - -#if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \ - || defined(__powerpc__) || defined(__s390__) -typedef unsigned int autofs_wqt_t; -#else +#if defined(__ia64__) || defined(__alpha__) /* pure 64bit architectures */ typedef unsigned long autofs_wqt_t; +#else +typedef unsigned int autofs_wqt_t; #endif /* Packet types */ |